Create a big matrix with submatrices: the following matrix g is created by putting matrices a, b, and c from exercise 1, on its diagonal and inserting 2 × 2 zeros matrices and 2 × 2 identity matrices in the appropriate position. create the matrix using submatrices a, b, c, zeros and eye (that is, you are not allowed to enter the numbers explicitly).
a = [2,6,3,9] b = [1,2,3,4] c = [-5,5,5,3]
using matlab
g = [ 2 6 0 0 1 0
3 9 0 0 0 1
0 0 1 2 0 0
0 0 3 4 0 0
1 0 0 0 -5 5
0 1 0 0 5 3 ]

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

146

step-by-step explanation:

lol   i know im kinda tired too

answer is

b.

1.67

hope you get this right.